Chemistry QUIZ #1

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This quizelt has everything the study guide has but the Periodic table groups

Last updated 12:18 AM on 12/8/22
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20 Terms

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Isotopes
a different version of an element that has different number of neutrons , this changes the mass, but not the identify of the element.
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Radioactive decay table
Alpha, Beta decay and Gamma
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Alpha Decay
2P and 2N are ejected, Atomic #: -2, Atomic Mass: -4
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Beta Decay
1N converted to a 1P and 1e-, proton remains in nucleus. Atomic Number +1, Atomic Mass unchanged.
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Gamma
energy released no other changes.
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Only atoms with ------------ will undergo radioactive decay.
unstable nucleus
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Proton Mass and Neutron Mass
1 amu
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Electron Mass =
1/1,836 amu
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AMU =
Atomic Mass Unit
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Where are a proton, neutron and electron are in an atom
99% of an atom are in a nucleus
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Atomic Number =
# of Protons
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Atomic Mass =
# of Proton + # of Neutron
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What are the types of atomic forces
Strong Nuclear force, Electromagnetic, Momentum
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Strong Nuclear force
Keeps nucleus together that over comes the repelling the force of like charges
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Electromagnetic
keeps electron from flying away from nucleus
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Momentum
prevents electron form slamming into nucleus.
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What happened when we heated the salts using a flame fueled by ethanol
The atoms when to an excited stated and emitted color
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How to find the protons?
Atomic number
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How to find the neutron
Atomic number - Atomic Mass
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How to find the Electrons
Electrons are the same as Protons if the atom has no nuclear charge.

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